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data-tocid="id-d3752e5243" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e5243-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mpp/mini_audio_player_user_guide.html" id="id-d3752e5243-link">MPP 音频播放器使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e5328" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e5328-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/lvgl/lvgl_introduction.html" id="id-d3752e5328-link">LVGL 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d3752e5544" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d3752e5544-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d3752e5544-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d3752e6799" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d3752e6799-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d3752e6799-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/i2s/i2s_interface_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">接口设计</h1>
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<div class="date inPage">16 May 2025</div><div style="color: gray;">
|
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Read time: 3 minute(s)
|
||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
<section class="- topic/section section" id="i2s-interface-design__section_ngf_lzl_4dc" data-ofbid="i2s-interface-design__section_ngf_lzl_4dc"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
|
||
|
||
<div class="- topic/div div section" id="i2s-interface-design__id13">
|
||
<p class="- topic/p p" data-ofbid="d162887e43__20250519091523">Driver 层可以同时实现 playback 和 record 两个功能，主要根据的是音频数据流的方向进行判别。</p>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_gvg_kkf_fdc" data-ofbid="i2s-interface-design__table_gvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_init</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_gvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e62__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_gvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e66__20250519091523">rt_err_t drv_i2s_sound_init(struct rt_audio_device
|
||
*audio)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e76__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e80__20250519091523">i2s 的初始化函数</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e87__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e91__20250519091523">audio：指向音频设备的指针</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e98__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e102__20250519091523">RT_EOK：执行成功</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e109__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_gvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e113__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_hvg_kkf_fdc" data-ofbid="i2s-interface-design__table_hvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_buffer_info</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_hvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e136__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_hvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e140__20250519091523">void drv_i2s_sound_buffer_info(struct rt_audio_device *audio,
|
||
struct rt_audio_buf_info *info)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e150__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e154__20250519091523">获取音频的 TX buffer 参数</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e161__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e165__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
<div class="- topic/div div">info：用于获取 TX buffer 参数的指针</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e181__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e185__20250519091523">无</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e192__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_hvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e196__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_ivg_kkf_fdc" data-ofbid="i2s-interface-design__table_ivg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_start</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_ivg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e219__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_ivg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e223__20250519091523">rt_err_t drv_i2s_sound_start(struct rt_audio_device *audio,
|
||
int stream)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e233__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e237__20250519091523">开始音频播放</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e244__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e248__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
<div class="- topic/div div"> stream：音频数据流方向</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e264__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e268__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> RT_EOK：执行成功</div>
|
||
<div class="- topic/div div"> -RT_EINVAL：参数非法</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e284__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_ivg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e288__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_jvg_kkf_fdc" data-ofbid="i2s-interface-design__table_jvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 4</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_stop</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_jvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e311__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_jvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e315__20250519091523">rt_err_t drv_i2s_sound_stop(struct rt_audio_device *audio,
|
||
int stream)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e325__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e329__20250519091523">结束音频播放</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e336__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e340__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
<div class="- topic/div div"> stream：音频数据流方向</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e356__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e360__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> RT_EOK：执行成功</div>
|
||
<div class="- topic/div div"> -RT_EINVAL：参数非法</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e376__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_jvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e380__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_kvg_kkf_fdc" data-ofbid="i2s-interface-design__table_kvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 5</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_pause</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_kvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e404__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_kvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e408__20250519091523">rt_err_t drv_i2s_sound_pause(struct rt_audio_device *audio,
|
||
int enable)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e418__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e422__20250519091523">暂停/恢复音频播放</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e429__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e433__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
<div class="- topic/div div"> enable：音频暂停和恢复播放使能位(0 为恢复，非 0 为暂停)</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e449__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e453__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> RT_EOK：执行成功</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e466__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_kvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e470__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_lvg_kkf_fdc" data-ofbid="i2s-interface-design__table_lvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 6</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_configure</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_lvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e493__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_lvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e497__20250519091523">rt_err_t drv_i2s_sound_configure(struct rt_audio_device
|
||
*audio, struct rt_audio_caps *caps)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e507__20250519091523">功能原型</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e511__20250519091523">音频设备配置接口，用于配置采样格式，采样率，通道数等接口</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e518__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e522__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
<div class="- topic/div div"> caps：指向配置参数的指针</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e538__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e542__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> RT_EOK：执行成功</div>
|
||
<div class="- topic/div div"> -RT_ERROR：参数不支持</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e558__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_lvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e562__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_mvg_kkf_fdc" data-ofbid="i2s-interface-design__table_mvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 7</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_i2s_sound_getcaps</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_mvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e585__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_mvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e589__20250519091523">rt_err_t drv_i2s_sound_getcaps(struct rt_audio_device *audio,
|
||
struct rt_audio_caps *caps)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e599__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e603__20250519091523">获取音频设备的参数</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e610__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e614__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
<div class="- topic/div div"> caps：指向配置参数的指针</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e630__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e634__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> RT_EOK：执行成功</div>
|
||
<div class="- topic/div div"> -RT_ERROR：参数不支持</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e650__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_mvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e654__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_nvg_kkf_fdc" data-ofbid="i2s-interface-design__table_nvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 8</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_audio_get_i2s_sound_avail</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_nvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e677__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_nvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e681__20250519091523">rt_size_t drv_i2s_sound_get_playback_avail(struct
|
||
rt_audio_device *audio)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e691__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e695__20250519091523">获取音频缓存的数据大小</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e702__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e706__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> audio：指向音频设备的指针</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e719__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e723__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> 缓存数据的大小</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e736__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_nvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e740__20250519091523">-</p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
</div>
|
||
</section>
|
||
<section class="- topic/section section" id="i2s-interface-design__section_kzk_lzl_4dc" data-ofbid="i2s-interface-design__section_kzk_lzl_4dc"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
|
||
|
||
<div class="- topic/div div section" id="i2s-interface-design__id14">
|
||
<p class="- topic/p p" data-ofbid="d162887e756__20250519091523">HAL 层接口也是分 playback，record 两部分进行设计，下面以 playback 端的接口进行说明。 </p>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_ovg_kkf_fdc" data-ofbid="i2s-interface-design__table_ovg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 9</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_protocol_select</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_ovg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e775__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_ovg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e779__20250519091523">int hal_i2s_protocol_select(aic_i2s_ctrl *i2s, i2s_protocol_t
|
||
protocol)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e789__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e793__20250519091523">设置传输协议</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e800__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e804__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div"> protocol：传输协议</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e820__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e824__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">0：执行成功</div>
|
||
<div class="- topic/div div"> -EINVAL：参数不支持</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e840__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_ovg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e844__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_pvg_kkf_fdc" data-ofbid="i2s-interface-design__table_pvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 10</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_sample_width_select</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_pvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e867__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_pvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e871__20250519091523">int hal_i2s_sample_width_select(aic_i2s_ctrl *i2s,
|
||
i2s_sample_width_t width)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e881__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e885__20250519091523">设置采样通道的位宽</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e892__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e896__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div"> width：通道的位宽</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e912__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e916__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">0：执行成功</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e929__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_pvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e933__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_qvg_kkf_fdc" data-ofbid="i2s-interface-design__table_qvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 11</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_mclk_set</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_qvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e956__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_qvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e960__20250519091523">int hal_i2s_mclk_set(aic_i2s_ctrl *i2s, i2s_sample_rate_t
|
||
sample_rate, uint32_t mclk_nfs)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e970__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e974__20250519091523">设置 MCLK 的时钟频率</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e981__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e985__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div">sample_rate：采样率</div>
|
||
<div class="- topic/div div"> mclk_nfs：MCLK 的时钟频率</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1004__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1008__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">0：执行成功</div>
|
||
<div class="- topic/div div"> -EINVAL：参数不支持</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1024__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_qvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1028__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_rvg_kkf_fdc" data-ofbid="i2s-interface-design__table_rvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 12</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_polarity_set</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_rvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1051__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_rvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1055__20250519091523">void hal_i2s_polarity_set(aic_i2s_ctrl *i2s, i2s_polarity_t
|
||
polarity)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1065__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1069__20250519091523">选择 LRCK 的左右通道极性</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1076__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1080__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div"> polarity：LRCK 的左右通道极性</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1096__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1100__20250519091523">无</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1107__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_rvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1111__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_svg_kkf_fdc" data-ofbid="i2s-interface-design__table_svg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 13</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_sclk_set</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_svg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1135__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_svg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1139__20250519091523">int hal_i2s_sclk_set(aic_i2s_ctrl *i2s, i2s_sample_rate_t
|
||
sample_rate, uint32_t sclk_nfs)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_svg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1149__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_svg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1153__20250519091523">设置 SCLK/LRCK 的比率</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_svg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1160__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_svg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1164__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div">sample_rate：采样率</div>
|
||
<div class="- topic/div div"> sclk_nfs：需要设置的比率</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_svg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1183__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_svg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1187__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">0：执行成功</div>
|
||
<div class="- topic/div div"> -EINVAL：参数不支持</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_svg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1203__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_svg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1207__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_tvg_kkf_fdc" data-ofbid="i2s-interface-design__table_tvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 14</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_channel_select</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_tvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1230__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_tvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1234__20250519091523">void hal_i2s_channel_select(aic_i2s_ctrl *i2s,
|
||
i2s_sound_channel_t channel, i2s_stream_t stream)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1244__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1248__20250519091523">I2S 通道数量设置</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1255__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1259__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div"> channel：指向 i2s_sound_channel_t 的变量，表示要使用的通道</div>
|
||
<div class="- topic/div div"> stream：音频数据流的方向</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1278__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1282__20250519091523">无</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1289__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_tvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1293__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_uvg_kkf_fdc" data-ofbid="i2s-interface-design__table_uvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 15</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_playback_start</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_uvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1316__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_uvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1320__20250519091523">void hal_i2s_playback_start(aic_i2s_ctrl *i2s, i2s_format_t
|
||
*format)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1330__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1334__20250519091523">开始播放</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1341__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1345__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
<div class="- topic/div div"> format：指向 i2s_format_t 的指针</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1361__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1365__20250519091523">无</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1372__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_uvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1376__20250519091523">- </p></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s-interface-design__table_vvg_kkf_fdc" data-ofbid="i2s-interface-design__table_vvg_kkf_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 16</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_i2s_playback_stop</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s-interface-design__table_vvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1399__20250519091523">函数原型</p></th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s-interface-design__table_vvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1403__20250519091523">void hal_i2s_playback_stop(aic_i2s_ctrl *i2s)</p></th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1413__20250519091523">功能说明</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1417__20250519091523">停止播放</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1424__20250519091523">参数定义</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1428__20250519091523">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"> i2s：指向 aic_i2s_ctrl 的指针</div>
|
||
</div>
|
||
</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1441__20250519091523">返回值</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1445__20250519091523">无</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__1"><p class="- topic/p p" data-ofbid="d162887e1452__20250519091523">注意事项</p></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s-interface-design__table_vvg_kkf_fdc__entry__2"><p class="- topic/p p" data-ofbid="d162887e1456__20250519091523">-</p></td>
|
||
</tr>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#i2s-interface-design__section_ngf_lzl_4dc" data-tocid="i2s-interface-design__section_ngf_lzl_4dc">Driver 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#i2s-interface-design__section_kzk_lzl_4dc" data-tocid="i2s-interface-design__section_kzk_lzl_4dc">HAL 层接口设计</a></div></li></ul></div>
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